Purifier for steam-boilers.



H. H. RALPH. PURIFIBR FOR STEAM BOILERS. APPLIOATION FILED APILM, 1914,

1, 1 20,405. Patented Deo. 8, 1914.

NVENTOR.

ATTORNEY.

`HE MORRIS PFTERS CO.. PHGTD-LITHO.. wAsHlNfroN D. C

y UNiTEDsTATEs PATENT OFFICE.

HARRY I-I. RALPH, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO BOILER WATER PU'RIFIER COMPANY,y OF Pfl-IILADEll'JPI-IIA,l PENNSYLVANIA, A CORPORATION ;`OF1

DELAWARE.

specification of Letters Patent.

P'URIFIER ron STEAM-Bonnes.

Patented Dec. 8, 1914.

Application ledAprl 14, 1914. Serial No. 831,887.

To all whom t may concern.' y v g Be it known that I, HARRYYH. RALPH, a citizen of the United States, residing at the city of Philadelphia,in the countyof Philadelphia and State of Pennsylvania, have invented certain new and useful `Improvements in Purifiers for Steam-Boilers, of which the following is a specification.

\ The principal object of the present invention is to provide a feed-water purifier for steam boilers of simple, efficient and comparatively inexpensive construction whereby raw water, as it is fed to the boiler, shall have eliminated therefrom to a great degree, certain objectionable dissolved solids,as, for instance, silica, oXid of iron and alumina, lime and magnesia. i A l A further object of the present invention isto provide means upon the' feed-'water purifier for recovery from the surface of water -within the boiler during vthe blowofi',certain refuse matter or scum that has escaped from the purifier. Y

Other objects of the inventionk relate to general detailsof construction `and arrangement of parts.` ,t

The invention consists of the im rovements hereinafter described .and nally claimed. f. t i

The` nature, characteristic` features and scope of the invention will be more fully understood from i the following description, taken` in vconnection with the accompanying drawings forming part hereof, and in which r Figure l, is a view in side elevation, partly sectioned of la steam-boiler equipped with a purifier embodying the invention, Fig. 2, is a view in centralV section, drawnto `anenlarged scale, of the purifier. embodying the invention.' Fig. 3, is aplan view thereof, Fig. 4, is a view in section drawn to an enlarged scale and taken upon thewline"` 4 4 of Fig. 2, and Fig. 5, is a detail view, in section, of a check valve hereinafter,` referred to. f i .t

In the drawingsand referring more particularlyto Fig. 1, there is illustrated an ordinary horizontal tubular boiler 1, contained 'within which is the feed-water purifier 2, of the invention. 'As shown, the purifier consists of three "sections3, 4 and 5, bolted together as at 6, to form a casing. The number of sections, however, is immaterial.y Leading to the purifier 2, from a pump `not shown, land illustrated asconnecting tothe section 3, is feed-water inlet i connection 7, provided with a valve 8. This connection 7, is of light weight tubing andis coiled asshown at 9, in Fig. 3, within the boiler 1, the number of coils depending upon the boiler horsepower. These coils provide additional heating surface 'to the feed inlet, so as to secure an eflicient precipitation of solid matters or sediment. The

opposite end of. the purifier-2,101' the section 5, thereof, has leading therefrom a pipe 10, having a valve 11. This pipeinay be connected with the valvedblow-off 12,0f the boiler 1. As shown in Fig. 4, the cross section of the body portion of the purifier is substantially pear-shaped and adjacent the upper part and upon each side thereofA these openings those designated 13, have leading therefrom pipes 15, and 16, of which the pipe 15, is shown' as extending rearwardly and parallel with the sides of the purifierrand the pipe 16, as extending forwardly in like manner, the pipes-15, and 16,y terminatingI in funnel-like members 17, which are horizontally disposed as shown. The coil 9, is also provided with a Vfunnellike member 17, horizontally disposed. The remaining openings ofthe purifier or those designated 14, are provided with movable valvesor flaps 18, shownk as being hinged to the purifier 2. As `shown in Fig..4, the purifier body is proded with 'lugs 19, having bolt openings that register `with similar openings in,lugs 20, of the ,valves 1S.' Bolts 29.,` acting` as pintles serve toafford hinged relation for the parts. The valves 18, may be provided with` stopsQQ, adapted 'to abut against the walls of` the purifier 2, to limit theirfoutward swing. Adjacent the feed-water inlet`7, and preferably immediately to the rear of the openings 13, isa baffle plate 2 3, shown as extending from the top-most portion of the purifier downward to within a short distance of the bottom thereof. i *i n,

' In practice, it is endeavored to keep the water `line within the boiler. 1, even with the funnel tops 17, and 17, above described, so

that the water outlet openings` 14, are con-` within the purifer'2, is slightly'inexcess ofV iron and alumina, lime and-magnesia', to the boiler 1, it is led to the purifier 2, and impinges against the baiiie plate 23. The sedi-- ment in the water, caused by the precipital tion "of the above'solids as they pass through the heated coils 9, is directedto the bottom of the purifier and caused to settle within the chamber 2,4, that extendsalong the. base thereof.` The water that yhas beenfreed of these solids rises in the purifier and findsl its way to the boiler interior through the openingsl-l, pressure within the purifier being sufficient tov overcome the gravity flaps 18, and permit them to move outward for thel purpose. Duringtheprocedure of feeding water tothe purifier the flaps vofthe check valvesy 25, which are providedy the pipes 15, and 1G, and the short extension 26, from the coil 9, Vwhich carries the funnellilre member 17a, are. all closed vto prevent the admission of scum to the purifier.

When it is desired to rid the purierv of sediment, use is madeof the blow-off connections 10and 12, the valve 8, ofthe feed inlet 7 being closed and the valve yl1, of the blow-ofic pipe v10, opened. During .the blowoff, the baffle-plate V23, servesto direct the force of steamxand water that-passes from the boiler 1, through the funnels 17, downwardv to the bottom of the forward end of the A,purifier and thence rearward along through the chamber 24, to the pipe 10. In this way,1 the bottom of the purifier is cleaned from end to end.V During the blowoff, there is necessarily presentjwithin the purifier a certain amount of agitation calculatedto 'raise the sediment in the bottom thereof and whi'chit is desirable not tohave nd its way to the boiler interior. In this respect, the gravityflaps y18, act inthis capacity andv during the blow-off remain closed because the amount of pressure withinv the purifier is slightly less than pressure withing the boilerat this time. In additionto the fact thatthese flaps by-being. closed prevent thefegress of sediment to thev4 boiler during the blow-off', they' further serve4 to direct the force thereof towardthebottom of the purier. Y Regarding' the blow-off period, it may befurther stated that the funnels 17 and 17a',`serve at this time to gather or collect from the surface of the water withinthe boiler any scum that may be present and deposit the 'same by way of the openings 13, within the purier, fromwhich it' escapes during the blow-off by way of the pipe 10. It will, ofcourse, be understood that` this. isV possible' since'pressure'within the purifier is' lower at this time than pressure withinthejboiler and consequently the fiaps ofthecheck valves 25, open, see Fig. g-*It is to be' notedv in this connection that the yfunnel' 1'v7",-byE its quick intake of boiler water, purges the ent therein.VH Y.

What-I claim is: .y riff-1,'

1. In apparatus of the character described a steamboiler-,a feed-water purifier includvcoils of any sediment pres- 'jing its complemental feed inlet located within they boiler,*and below the normal water level ,thereof,.v alved ports arranged along each side of and throughout the entire length of said purifier for normally permittingwater as it goes throughthe purifier to egressvto the boiler-at. substantially theA sameV level asthe point of admission, Iand means for closing the :,val-ves Y of said 1 ports to temporarily. interrupt such passage ofwater. V2. Inapparatusofthe character described` a steam boiler, a feed-water purifier, includ-- ing its complemental v feed inlet and points to yegress located within Vthe boilerl and ybelowk the normal water level, thereof, means for maintaining pressure within ,thel purifier y slightly in feXcess of pressure in the boiler, meansfor permittingl waterV as it flows through the purier to. pass through said points of egress to the boiler atsubstantially the same level as the point of admission, and means for reducing the amount of pressure within the purifierto a pointv lower than pressure .within the boi1er, -whe'reby the points of; egress'.` are automatically closed. 3. Inapparatus of the character described a steam boiler, a feed-water purifier including itscomplemental feed inletlocatedwithin the boiler, `and below the ynormal ,water level thereof, means for maintaining: pres-g sure withinthepurifier in excess kof-that within the iboiler,means upon `opposite sides of and operatively connected with theprifier for deliveringscum from the waterrv surface within the boiler. to the purifier, a series of valves complementalfto egress ,openings arranged upon each vside ofand throughout the entire length of said purifier-,for normallyv permittingwater to pass-from the purifier to the boilerjand means. for reducingfpressure" within the purifiery toiaz point belowthat of -th'e boiler to cause. the scumA delivering means to operatev and .for interruptingthe egress `of water from -the vpurifier tothe boiler. v l' v 1 wrpparatus of the character described comprising a hollow casing having ahorizontally-arranged inlet connection, afbaffle plate immediately adjacent vthe inletand extended from the top of saidecasing downward to within a short distanceof the bottomv thereof, vand av series Lof.v valves complemental to egress openings arranged v'upon each side lof said casing throughout the entire length thereof. Y v f 5. A water purifier of the class-'recited comprising aj hollow casing provided. throughout its entire length l with a series of openingsymovable covers for someloffsaid i izo openings, pipes terminating in funnel-like extensions for other of said openings, a horizontal feed inlet for the casing and a baffle plate immediately adjacent the inlet and extending from the top of said casing to a point near the bottom thereof.

6. In combination a steam boiler, a feedwater purifier within the boiler and below the normal water level thereof, normally passing water from a series of valved ports arranged along each side of the purifier opening directly into the boiler at substantially the same level as the point of admission, said point of admission being adjacent the top of the purifier, means for blowing off the purifier and means for interrupting the passage of water from the purifier to the boiler by closing said valves during the blow-off operation.

7. A water purifier of the class described having a horizontally arranged water inletl at the top of said purifier, a blow-ofi1 connection at the bottom of said purifier, a sediment receiving chamber of circular cross section in the bottom thereof, a baffle plate immediately adjacent the inlet opening and extending from the top of said purifier to the top of said chamber, whereby duringthe i blow-off operation water impinges against said baffle plate and is directed downward to cause sediment to be removed from end to end of said chamber through the blow-olf connection.

8. A feed water purifier comprising a casing provided adjacent its top with a plurality of valved egress openings, and valved connections communicating with the casing interior said connections having funnel-like inlets.

9. A feed water purier comprising a casing provided adjacent its top with a plurality of openings, movable covers for some of said openings, valved pipes terminating in funnel-like extensions for other of' said openings, a coiled feed inlet connection for the casing and a valved funnel-like device coperative with said coil.

In testimony whereof, I have hereunto signed my name.

WILLIAM J. JACKSON, AGNES E. CASKEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

